Vol. 5, Issue 4 (2017)
Effect of gamma radiation on germination and seedling parameter of finger millet (Eleusine coracana L. Gaertn.)
Author(s): Ambavane Ajinkya Rajendra, Patil Dagdu Magan and Dr. Savardekar Santosh Vishnu
Abstract:
In the present study, irradiation techniques were used to investigate the effect of gamma irradiation on germination and seedling parameter of finger millet. Finger millet (Var. Dapoli-1 and Dapoli Safed) seeds were irradiated with using Co60 gamma radiation (400, 500, 600, 700 and 750 Gy) at BARC, Mumbai. To find out LD50 dose for the seed, influence on germination, mean daily germination (MDG), root length, shoot length and other seedling parameters were investigated. The results laboratory studies showed that irrespective of doses the germination percentage was reduced in treated seed. It was higher in control (98.20 % and 91.40 % in Dapoli-1 and Dapoli Safed, respectively) and lowest in 750 Gy dose of gamma rays (70.40 % and 66.60 % in Dapoli-1 and Dapoli Safed, respectively). Shoot and root length decreased with increasing radiation doses. On field level, the percent of germination had decreased gradually after irradiation and the effect become stronger with an addition of gamma dose. It was high at control (89.33 % and 82.0 %) and low at 750 Gy (50.25 per cent and 48.92 per cent in Dapoli-1 and Dapoli Safed, respectively). Survival percentage was high at control and low at 750 Gy dose. The result also indicates that, in both the varieties, 500 Gy dose had near about 50 per cent reduction in root and shot length in laboratory study and 50 per cent reduction in percent survival during field studies. The study clearly indicated an increase in the deleterious effects of gamma irradiation at regular intervals and the LD50 dose for the both varieties located near to the dose of 500 Gy for both varieties of finger millet.
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How to cite this article:
Ambavane Ajinkya Rajendra, Patil Dagdu Magan, Dr. Savardekar Santosh Vishnu. Effect of gamma radiation on germination and seedling parameter of finger millet (Eleusine coracana L. Gaertn.). Int J Chem Stud 2017;5(4):1978-1982.
